Herblore

You can get lots of herblore ingredients from PvM in this server. Hellhounds are a great place to get herblore secondaires as they should drop low ammounts of every 2nd in game. Camp these for those Stacks of 2nds :)

You can also get your herbs from either PvM or farming. I would recommend stealing from the master farmer at level 60 thieving to get those important seeds.